Can a Power FC with FC Data Logit run 6 injectors, 2x550cc stock primarys, 2x1300cc secondry injectors plus additional fuel rail with 2x850cc secondry injecors. All injectors are side feed.

Your help would be much appreciated, thanks.

 

I am also running 1 intank fuel pump and 2 Bosch motor sport fuel pumps and a surge tank, hope you can help me ?

 

Some of the aussie guys run 4 850's in the secondary rail (IN ADDITION TO THE PRIMARIES). They just splice the injector wirings and put 1700 for the secondary inj setting.
John

 

Thanks for the info Jodney, any other with more answers on this injector question ?

Thanks in advance for your help guys.

 

As Jondeny said one option is to just wire up 2 injectors per driver, but the injector response time may suffer.

Another option is to send it back to Apexi Japan and get them to modify the circuit board to allow the PFC to drive 2 additional injectors. Afaik it is only Apexi Japan that offers these modifications, I don't know whether Apexi USA will do this.

 

I am also thinking of using 6 inj an extra two on the primaries and 2 1300 on sec. Does an body knows if the injecter drivers manage this. All injcteros are high ohms. I am building a drag racer with ported and big turbo.
Thanks

 

Contact Ralph at Groundzero Motorsports, he's been running additional injectors for years with the PFC.

 

We have many cars in NZ running power FC's with 6 or more injectors, very easy to do. run the extra injectors off the wiring for the secondaries and just put in the values of how much the combined injectors sizes are and then tune.
8 is the most i have seen, 4 x primaries, 4 x secondaries.

if you have a FC-Datalogit, look in the manual and it documents how to do it.

 

If you are running a car like that, one questions the choice of the PFC over another ecu more suitable for that type of application....

 

I have to ask....why?
John

 

The PFC is designed for minimum installation fuss and streetability. There are other ecus (Haltech for example) that are more flexible and are more appropriate (IMO) for a drag/race car.

 

FYI, I would be worried about injector impedance when doing something like this. Too much load on the ECU's transistors can burn 'em up. Probably would need an appropriate-sized resistor as well.

Or just run larger injectors and be done with it .

Dale